Journal
JOURNAL OF APPLIED PHYCOLOGY
Volume 27, Issue 1, Pages 555-562Publisher
SPRINGER
DOI: 10.1007/s10811-014-0350-2
Keywords
Selenium; Accumulation; Ulva fasciata; Chlorophyta; Antioxidant enzymes; Photosynthetic pigments; Nutrient removal
Funding
- National Key Technology R&D Program of China [2012BAC07B05]
- Special Fund for Agro-scientific Research in the Public Interest in China [201403008]
- Natural Science Foundation of China [U1301235, 41173079]
Ask authors/readers for more resources
Enrichment of selenium (Se) by seaweed is of great significance for mariculture. In this study, the green alga Ulva fasciata was cultured with a selenite (Na2SeO3) concentration from 0 to 1,250 mg L-1. Se accumulation in the algal biomass was linearly related to Na2SeO3 concentration in the culture medium. Lower Se concentrations (a parts per thousand currency sign750 mg L-1) increased the activities of guaiacol peroxidase (GPX), catalase (CAT), peroxidase (POD) and superoxide dismutase (SOD) and the content of photosynthetic pigments, and as well induced lipid peroxidation (LPO) and intracellular reactive oxygen species (ROS) levels. Meanwhile, the cell growth rate and concentrations of organic Se increased. In contrast, these changes were the opposite in U. fasciata exposed to Se concentrations higher than 750 mg L-1. In all cases, Se-Ulva was able to remove inorganic nutrients effectively. Therefore, U. fasciata is tolerant to Se, and Se-Ulva has potential as a source of antioxidative food and an effective control of eutrophication.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available